Comes with the PCB, all resistors, transistors, capacitors, diodes, heatsinks, parts list, schematic and instructions. Badlands at KYFU - YouTube Video will open in a new window Checkout my Altec 9475A Mic / Line Preamp Kit by clicking this link. Below is a video of my vintage radio station studio with an Altec 250T3 console which uses 9475A pre-amplifiers. If you are a registered eBay User based outside the US but use a US shipping address to receive packages, no problem. I only ship to the lower 48 states in the United States. Save the shipping fees and pickup at my location. Per Lundhal personally advised me on the replacement transformers so no worries about new transformers not sounding as good as the old ones. Transformers are available through Lundhal. Operates on 24 VDC regulated power supply. The PCB measures approximately 7 ½” x 4” x 1 “7/8 with transformers installed. John Hall (original designer of the 9475A) advised me on component upgrades for obsolete parts. I designed these new PCB’s so I could replace failed preamps. Over the years some of my original 9475A preamps have failed (fried). I know because I own and use an Altec 250T3 console (see pic of console). Once assembled this pre-amplifier sounds as good as an original 9475A. Altec 9475A preamplifier is easy to build. Original 9475A schematic & info can be found here. You will receive the PBC, a printed Parts List (with part numbers and where to by info), a printed Notes page which explains the assemble process and a printed schematic. This item is a bare PCB only, no parts or transformers included. The pic's of an assembled PCB, original 9475A preamplifier and broadcast gear are for demonstration only. A blank PCB (printed circuit board) used to build an Altec 9475A preamp. Item: 291822302951 Altec 9475A Mic Preamplifier DIY Printed Circuit Board.

Diy altec console